Burglar alarm



Get, 9 ,1923. 1,469,969

F. E. SPARKS BURGLAR ALARM Filed Dec. 12. 1921 FE S/ar/r 5, mvN-roR ATTO RN EY CJI il atented Get. 9, 1323.

' l wat s tile,

' FRED n. SPARKS, or AKRON, OHIO.-

BURGLAR ALARM.

Application filed December 12, 152i. Seria1 110.;521510.

T all 0m it may c092 a v 1 Be it known that I, T .1) E. SPARKS, a the llnited States, residing at the county of Summit and State have invented new and ise'ful 'Imin Burglar Alarms, of which followm is a specification.

i. i i .1 1 iuis tion re ates to alarm dev ces,

, stated which may be readily produced and appear from the detaileddescrip ion.

sold at small costv In the drawings'z 1 Figure l is a front view of the device w1th the bell omitted;

Figur 2 is a side-view of the device as appliedy V v Figure 3 is a topplan view of the device with the bell omitted; Figure l is a side View with the bell omitted taken from the side opposite to Fig- .ure' 2.

This device is intended more particularly as an improvement over the device diclosed in my U. S. patent tor burglar alarm, granted to me Nov. 22, 1921, Number 1,398,160.;

The device oithis application includes a rectangular base plate 1 provided at one side.

with a rev-tangularly disposed flange 2 which turned downwardly and outwardly at its upper from which depends an outer flange posed in parallel spaced relation to flange 2,

ea ge provide a connecting web 3 disthe flanges 2 and sand web element 3 co-opcrating to form a supporting member of substantially U-shape in cross-section. A bell plate 5 is pivoted by means of a pin 6 to the U-supportmg member, this bell plate being disposed at right angles to base plate 1. T he bell plate is provided with an L-shaped guide element. 7 which fits about the outer upper portion of flange 2, web element 3 being cut away to accommodate element '7.

Plate 5 isi'urther provided, at its outer lower portion, with twooutwardly projectingangularly disposed fingers 8 and 9. The lower linger 9 is adapted for engagement by locking elenient'ldof a locking bail 1i rockably mounted in sleeves 12 at the outer end Further objects will. I

' 2 member b mounted to turnabout' the body of the bell, nieansbeing provided whereby of base/plate 1.; The" is formed of a single piece or" metalbent to provide the angularly disposed finger-IO and an Op13tt mg rod or pOltlOlil which projects above sleeves 12 at ananglethereto'so as to'permit ready turningof the bails A wire spring His roiledabout pin 6 with one; end bearing; against the underface otweb element 3, the oth-er end OfthlS spring fitting beneath guide element 7. This spring serves to hold plat}; .5 raised so as to press the.controllingmember of a bellB mounted on plate5 against the side rail of an upper sash C of window, base plate l being secured upon the top llll QflQXYGI 'SflSl] D. l preter to use the bell. disclosedin my pats .ent above identified. This bell includes a ringing mechanism and an outer control and described in my patent above identified, it is not thought necessary to give a detailed "iescription of the bell here, the important feature 01" the bell, so far as the present invention is concerned, residing in the control member 6 which acts to render the ringing mechanism of the bell active and inactive according tothe position into which this member is turned. By placing the thumb upon member 8 and exerting downward pressure, and turning bail 11. upwardly and inwardly with the index finger so as to cause element 1.0 to engage over locking finger 9,

the plate 5 may be readily secured in lowcred position so asto hold the hell out of contact with the upper sash as indicated in Fig. 2. This provides simple and eiiicient means whereby the device may be rendered inoperative when desired. What I claim'is:-- 7 1. In adevice of the character described, a base plate, a bell supporting plate pivoted to the base plate for movement at right 7 position.

angles thereto, an automatically actuated bell mounted'on said supporting plate'and, including acontrol -member mounted on the bell to turn about the same, the bell being placed in inoperative condition When said member is turned into one position and in operative condition when the control member is turned out of said position, means for normally holding said bell supporting plate raised, and means for releasably securing the bell supporting plate in lowered 2: In a deviceof the character described, a*base plate, 'ab'ell supporting plate pivoted to the base plate for movement at right angles thereto, an automatically actuated V bell 'n' ountedon' said' supporting plate and iaeiumng a control member', 'inonnted on the blfltO turn about the san'ie,:the bell "bem g placed 1n :1.noperat 1ve condition When said menibei'jisfturned into one position and operative condition When the control freember is turned out of'said position, a locking element projecting from said supporting plate, and a member carriedby the'base plate andmovable into engagen'ient with 7 said locking element When the bell support inp'pla'te vis'lowered for securingthe same.

'3. In .a device of the character described, abase plate, provided with a supporting member of substantially U-shape in crosssection, a supporting plate, a pivot pin I pate through the supporting plate and the U-member, said supporting plate being provided with a guide element fitting about one Wall of the U-niember for guiding the supporting plate durin movement thereof, a springmounted about the pivot pin and liiearing-at one end on the Web of the U-mem-' ber, the other, end of the springbearing against said guide member and acting to hold the supporting-plate raised, automat ica-lly actuated alarm means mounted on the supporting plate and adapted to be released bv rolling contact with an object, and means for releasably securing the supporting plate in lowered position. 1 l 1 r 4. In a: device-o'l the character describee, a base plate, a supporting plate'pi'voted to' the base plate, means for torcingj said sup 9 portingplate away :ifroin the base plate, an automatically actuated alarm device mounted on the supporting plate and adapted to be released so as to become active 4 r by rolling contact with an object, alocking bail 'rockabl'y mounted on the base plate and ncluding a locking element and an angularly disposed operating rod, and a locking element carried by' the supporting plate and positioned'to he engaged bythe In testimony FRED E. SPARKS; 

